Oxyrhopus trigeminus Duméril et al., 1854

Type locality. Bahia State, Brazil (via lectotype selection designated by Zaher and Caramaschi, 1992) .

Distribution. Known from Bolivia and Brazil (Plt. 323A). In Brazil, widespread in the Cerrado, and Caatinga and most of the Atlantic Forest,with marginal records in Pantanal, Chiquitano Dry Forest, Amazonia, and Araucaria Forest (Plt. 323A), mostly at intermediate to high elevations (Plt. 323B). Previous maps and taxonomy in Zaher and Caramaschi (1992). Observed in the field in grasslands, savannas, and xeric scrub (Carvalho and Vilar, 2005; Vaz-Silva et al., 2007; Recoder et al., 2011; Guedes et al., 2014).